CN106047424A - Coke oven gas hydrogen sulfide gas recovery method and device - Google Patents
Coke oven gas hydrogen sulfide gas recovery method and device Download PDFInfo
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- CN106047424A CN106047424A CN201610494585.6A CN201610494585A CN106047424A CN 106047424 A CN106047424 A CN 106047424A CN 201610494585 A CN201610494585 A CN 201610494585A CN 106047424 A CN106047424 A CN 106047424A
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- adsorber
- hydrogen sulfide
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
- C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
- C10K1/004—Sulfur containing contaminants, e.g. hydrogen sulfide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/102—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids containing free acid
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/122—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors containing only carbonates, bicarbonates, hydroxides or oxides of alkali-metals (including Mg)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Abstract
The invention discloses a coke oven gas hydrogen sulfide gas recovery method and device, and provides a coke oven gas hydrogen sulfide gas recovery method. The method comprises the following steps: coke oven gas deoiled by the deoiling tank and a heated strongly alkaline adsorption solution simultaneously enter a one-stage or multistage swirl injection adsorber; the adsorption solution with adsorbed hydrogen sulfide in the one-stage or multistage swirl injection adsorber flows to a circulating solution tank, is heated by a circulating solution tank coil pipe, and is sent to a desorption-regeneration integrated device by a solution circulating pump; a metal ion catalyst is utilized to oxidize and desorb the simple substance sulfur in the desorption-regeneration integrated device, and the simple substance sulfur is separated and recovered; and polyphenol substances react with oxygen in the air to generate quinones, and the quinones oxidize and reactivate reduced metal ion catalyst in the desorption-regeneration integrated device to restore the oxidative desulfurization capacity of the metal ion catalyst, thereby completing the adsorption-desulfurization-regeneration circulation. The invention also discloses a related device of coke oven gas hydrogen sulfide gas recovery.
Description
Technical field
The invention belongs to the energy and field of Environment Protection, relate to the recovery method of a kind of coke-stove gas hydrogen sulfide gas, it is adaptable to
Coke-stove gas hydrogen sulfide gas removal process.Specifically, the invention provides the recovery method of coke-stove gas hydrogen sulfide gas
And device.
Background technology
H2S is a kind of colourless irritative gas, has strong rotten egg abnormal smells from the patient, polar molecule, and relative molecular mass is
34.08, odor threshold is about 0.00041ppm, relative density be 1.19(atmospheric density be 1), fusing point is-85.5 DEG C, boiling point
For-60.4 DEG C, soluble in water and ethanol.
Act not only as civilian and industrial combustion gas after coke-stove gas reclaiming clean to use, but also can be used to generating and
Produce the chemical products such as methanol, synthesis ammonia, dimethyl ether, carbamide, sponge iron.H in coke-stove gas2S content is typically at 2～6 g/m3
(different because of coal sulfur content height), desulfurization is a link important in coke oven gas purification.Conventional coke oven gas desulfurization side
Method is wet oxidation process, and its ultimate principle is to utilize the H in ammonia or sodium carbonate alkali liquor absorption coke-stove gas2S, then by ionic state
Sulfur (HS) be oxidized to elemental sulfur, alkali liquor is regenerated the most therewith.Conventional method have tannin process, PDS method, ADA method, 888
Method, cooperation iron processes etc..The advantage of wet oxidation process is that desulfurization scope width, desulfurization precision are high, opereating specification is wide, desulfurizing agent is easy to
Transport, regenerating easily, can reclaim Sulphur ressource, its shortcoming is that doctor solution Sulfur capacity is little, liquid circulation amount is big, power consumption is high, desulfurization
Packed tower mass transfer effect is poor, filler easily blocking etc..Acidic components in coke-stove gas are mainly H2S and CO2, usual CO2Body
Fraction about 1.0%～2.5%, during wet oxidation desulfurization, alkali liquor is absorbing H2While S, will certainly absorb certain
The CO of amount2, thus causing doctor solution circulating load big, energy consumption is high.Seek a kind of H rapidly and efficiently2S removing process and equipment, strengthening
Alkali liquor is to H2The absorption of S, reduces gas-liquid contact time, and suppression alkali liquor is to CO2Absorption, significant for coke oven gas desulfurization.
Hydrogen sulfide in domestic most employing tower equipment removing coke-stove gas, as Chinese patent 201210412620.7 is public
Having opened the system of hydrogen sulfide in single column removing coal gas, Chinese patent 201510263677.9 discloses desulfurizing tower series connection removing coal gas
Middle hydrogen sulfide etc..But use tower equipment to carry out sulfur recovery desulfuration efficiency is notable, method complicated, floor space big, investment is high,
Attendant equipment is more.It has been observed that have not seen the research report using Multi-stage spiral device to carry out coke-stove gas hydrogen sulfide recovery at present.
Therefore, this petrochemical industry and field of Environment Protection can reduce cost in the urgent need to exploitation one, simplified system,
Improve coke-stove gas hydrogen sulfide gas recovery method and the device of effect simultaneously.
Summary of the invention
The invention provides a kind of new coke-stove gas hydrogen sulfide gas recovery method and device, overcome existing method with
The deficiency that device exists.
A kind of coke-stove gas hydrogen sulfide gas recovery method, it is characterised in that:
(1) spray desulfurization: the coke-stove gas after oil removing pot oil removing enters one or more levels swirl injection adsorber, heats simultaneously
Rear temperature be the aqueous alkali of 30～80 DEG C as hydrogen sulfide adsorption liquid through pump also into one or more levels swirl injection adsorber；Burnt
Producer gas tangentially enters from adsorber top entry, and strong basicity adsorption liquid sprays into from adsorber sidewall aperture；The stream radially sprayed into
Line style adsorption liquid is persistently cut by the coke-stove gas of tangential high speed rotating, forms countless adsorption liquid droplet；Rich in sulfur after absorbing
The adsorption liquid of compound flows out from absorber bottoms, flows into circulation liquid bath, and after purification, gas flows out from adsorber top；
(2) desorption, regeneration unit: use solution after circulation fluid slotted disk pipe heats through spraying the adsorption liquid rich in sulfide of desulfurization
Circulating pump is pumped in the middle part of desorption, regeneration integrated apparatus, and air is entered desorption, regeneration integrated apparatus by bottom simultaneously；De-
Attached, regeneration integrated apparatus in utilize metal ion catalyst to be desorbed out elemental sulfur, metal ion catalyst is reduced, the product sulfur
Leave from desorption reaction device top, send into follow-up equipment, separation and recovery；In desorption, regeneration integrated apparatus, polyphenol substance is with empty
In gas, oxygen combination generates quinone, and metal ion catalyst oxidation is brought back to life by quinone, recovers oxidation sweetening ability, taking off of Method Of Accomplishment
Sulfur regeneration circulates.
Preferably, the Multi-stage spiral injection adsorber described in step (1) is 2～5 grades.
Preferably, the single-stage swirl injection adsorber works pressure drop described in step (1) is 1～5kpa.
Preferably, the swirl injection adsorber sidewall hole diameter described in step (1) is 0.5～5mm.
Preferably, the effective Sulfur capacity of metal ion catalyst described in step (2) up to more than 0.80g/L, H after desulfurization2S
Content is up to 5mg/Nm3Below.
Preferably, the metal ion catalyst described in step (2) can be recycled.
Preferably, containing ionic surfactant material in the metal ion catalyst described in step (2), can reduce
The surface tension of solution, makes elemental sulfur easily be enriched with, easily separates out.
Method of the present invention is applicable to coke-stove gas operating mode.
On the other hand, the invention provides the device that a kind of coke-stove gas hydrogen sulfide gas recovery method uses.This device
Including:
Single-stage or Multi-stage spiral injection adsorber, the top of this injection adsorber is provided with the coke-stove gas after oil removing pot oil removing
Entrance, the entrance of strong basicity adsorption liquid；The bottom of this injection adsorber is connected with the circulation fluid barrel road collecting adsorption liquid；This spray
The top penetrating adsorber is provided with gas outlet after purification；
And be connected to be desorbed elemental sulfur the desorption reclaimed, regeneration integrated apparatus with circulation fluid barrel road.
Further, the described coke-stove gas after the oil removing pot oil removing entrance from adsorber top is tangential entrance.
Further, the entrance of described strong basicity adsorption liquid is to spray into from adsorber sidewall aperture.
The method characteristic of the present invention is as follows:
(1) use swirl injection adsorber plural serial stage and parallel connection, be effectively improved removal hydrogen sulfide effect, increase hydrogen sulfide gas
Treating capacity.
(2) metal ion catalyst desulfuration efficiency is high, and regeneration completely, can be recycled for a long time.
(3) containing ionic surfactant material in metal ion catalyst, the surface tension of solution can be reduced, make list
Matter sulfur is easily enriched with, and easily separates out.
(4) the method is applicable to coke-stove gas operating mode.
Assembly of the invention feature is as follows:
The desulfurization adsorption efficiency of single-stage swirl injection adsorber is more than 99%.
This device is easy of integration, oil removing pot, swirl injection adsorber, be desorbed, to regenerate integrated apparatus diameter little, decreases dress
The total floor space put and gross investment.
Accompanying drawing explanation
Fig. 1 is the single-stage swirl injection adsorber method flow diagram of the present invention.
Fig. 2 is the Multi-stage spiral injection adsorber method flow diagram of the present invention.
Fig. 3 is the swirl injection adsorber inwall injection schematic diagram of the present invention.
Symbol description:
1 strong basicity adsorption liquid storage tank；2 strong basicity adsorption liquid delivery pumps；3 swirl injection adsorbers；4 circulation liquid baths；5 circulating pumps；6
Desorption, regeneration integrated apparatus；7 air reservoirs；8 oil removing pots；9 two grades of swirl injection adsorbers.
Detailed description of the invention
The technology design of the present invention is as follows:
As in figure 2 it is shown, the coke-stove gas of refinery plant emissions enters single-stage or Multi-stage spiral injection adsorber 3 and 9, storage tank simultaneously
In 1, strong basicity adsorption liquid is delivered in swirl injection adsorber 3 and 9 by delivery pump 2, removes the gas after hydrogen sulfide and enter in 3
Multi-stage spiral injection adsorber 9 purifies；In swirl injection adsorber 3 and 9, sulfur compound adsorption liquid enters circulation liquid bath 4, through following
It is delivered in desorption, regeneration integrated apparatus 6 by circulating pump 5 after ring liquid bath 4 heating；In storage tank 7, air is also into desorption, regeneration
Integrated apparatus 6, the 6 sulfur simple substance produced are delivered to follow-up equipment and recycle, and in 6, polyphenol substance is raw with oxygen in air
Becoming quinone, the metal ion catalyst oxidation being reduced in desorption, regeneration integrated apparatus is brought back to life by quinone so that it is recover oxidation sweetening
Ability, completes to adsorb the circulation of desulfurization regeneration.
In a first aspect of the present invention, it is provided that the recovery method of a kind of coke-stove gas hydrogen sulfide gas, the method includes:
Coke-stove gas enters one or more levels swirl injection adsorber, and the aqueous alkali of temperature after heating 30～80 DEG C is as sulfur simultaneously
Change hydrogen adsorption liquid tangentially to enter from adsorber top entry also into one or more levels swirl injection adsorber, hydrogen sulfide gas through pump
Entering, strong basicity adsorption liquid sprays into from adsorber sidewall aperture；The streamlined adsorption liquid radially sprayed into is by the sulfur of tangential high speed rotating
Change hydrogen persistently to cut, form countless adsorption liquid droplet；Rich in the adsorption liquid of sulfide from absorber bottoms stream after absorbing
Going out, flow into circulation liquid bath, after purification, gas flows out from adsorber top；
Adsorption liquid rich in sulfide is pumped to desorption, regeneration one makeup with solution circulation pump after circulation fluid slotted disk pipe heats
Putting middle part, air is entered by bottom simultaneously.Desorption, regeneration integrated apparatus utilize metal ion catalyst to be desorbed out simple substance
Sulfur, metal ion catalyst is reduced, and the product sulfur is left from desorption reaction device top, sends into follow-up equipment, separation and recovery；De-
Attached, regeneration integrated apparatus in polyphenol substance oxygen with air in is combined generation quinone, quinone by metal ion catalyst aoxidize resurrection,
Recover the desulfurization regeneration circulation of oxidation sweetening ability Method Of Accomplishment.
In the present invention, the flowing of coke-stove gas and strong basicity adsorption liquid self forms centrifugal field and barometric gradient field, depends on
Cyclone adsorbing is carried out by centrifugal field and barometric gradient field.
In the present invention, Multi-stage spiral injection adsorber carries out serial or parallel connection, can improve removal hydrogen sulfide effect, increase
Hydrogen sulfide treatment amount.
In the present invention, circulation liquid bath is heater, is also mixing arrangement.
In the present invention, it is desorbed, regenerates in integrated apparatus that metal ion catalyst solution is from top spray, rich in sulfuration
Thing adsorption liquid is sailed against the current from bottom, is fully contacted reaction.
In a second aspect of the present invention, it is provided that the retracting device of a kind of coke-stove gas hydrogen sulfide gas, this device includes:
Single-stage or Multi-stage spiral injection adsorber, be used for adsorbing hydrogen sulfide in coke oven；
The circulation liquid bath being connected with swirl injection adsorber, is used for heating inflow liquid therein；
With circulation liquid bath is connected desorption, regenerate integrated apparatus, be used for being desorbed elemental sulfur and reclaiming, metal ion catalyst is again
Raw；
In the present invention, the desulfurization adsorption efficiency of single-stage swirl injection adsorber is more than 99%.
Multi-stage spiral injection adsorber can be integrated, is desorbed, to regenerate integrated apparatus diameter little, decreases device and always takes up an area face
Amass and gross investment.
The advantage of the inventive method and device is:
Use swirl injection adsorber plural serial stage or parallel connection, be effectively improved removal hydrogen sulfide effect；Metal ion catalyst takes off
Sulphur efficiency is high, and regeneration completely, can be recycled；Containing ionic surfactant material in metal ion catalyst, can reduce
The surface tension of solution, makes elemental sulfur easily be enriched with, easily separates out；The method is applicable to coke-stove gas operating mode；This device is easy of integration, rotation
Stream injection adsorber, be desorbed, to regenerate integrated apparatus diameter little, decreases total floor space and the gross investment of device.
Above said content is only the basic explanation under present inventive concept, and according to appointing that technical scheme is made
What equivalent transformation, all should belong to protection scope of the present invention.Below in conjunction with embodiment, the present invention is further described, and embodiment is also
Do not limit the scope of the invention.
Embodiment 1:
Single-stage swirl injection adsorber 100000 Nm3/ h coke oven gas desulfurization.
Behavior of High-sulfur Petroleum Coke producer gas composition following v%:CO:7%, H2: 56%, CO2: 3%, N2: 5%, CH4: 25%, CnHm:2.5%, O2:
0.5%, H2S:15g/Nm3。
Technique effect: this coke gas flow is big, and sulfur content is higher, uses this novel coke oven gas hydrogen sulfide gas to reclaim
Method and apparatus, makes single-stage swirl injection adsorber concentration of hydrogen sulfide out be down to 1.5g/Nm3Hereinafter, efficiency be 90% with
On, make side-product sulfur 100kg/h, substantially increase hydrogen sulfide recovering effect and treating capacity.
Embodiment 2:
Multi-stage spiral injection adsorber 100000 Nm3/ h coke oven gas desulfurization.
Behavior of High-sulfur Petroleum Coke producer gas composition following v%:CO:7%, H2: 56%, CO2: 3%, N2: 5%, CH4: 25%, CnHm:2.5%, O2:
0.5%, H2S:15g/Nm3。
Technique effect: this coke gas flow is big, and sulfur content is higher, uses this novel coke oven gas hydrogen sulfide gas to reclaim
Method and apparatus, plural serial stage, make first order swirl injection adsorber concentration of hydrogen sulfide out be down to 100mg/Nm3Hereinafter,
Swirl injection adsorber concentration of hydrogen sulfide out in the second level is down to 30mg/Nm3Hereinafter, overall efficiency is 99.8%, makes by-product
Product sulfur 1500kg/h, substantially increases hydrogen sulfide recovering effect and treating capacity.Use the metal ion catalysis of renewable circulation
Agent, makes the sulfur simple substance response rate be greatly improved.Comparing with additive method and device, the method and device of the present invention simplifies and is
System, provides cost savings, can produce great economic benefit.
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It is right to it should be pointed out that,
For those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out
Some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.To disclosed enforcement
The described above of example, makes professional and technical personnel in the field be capable of or uses the present invention.Multiple amendment to these embodiments
Will be apparent from for those skilled in the art, generic principles defined herein can be without departing from this
In the case of the spirit or scope of invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to illustrated herein
These embodiments, and be to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (9)
1. a coke-stove gas hydrogen sulfide gas recovery method, it is characterised in that:
(1) spray desulfurization: the coke-stove gas after oil removing pot oil removing enters one or more levels swirl injection adsorber, heats simultaneously
Rear temperature be the aqueous alkali of 30～80 DEG C as hydrogen sulfide adsorption liquid through pump also into one or more levels swirl injection adsorber；Burnt
Producer gas tangentially enters from adsorber top entry, and strong basicity adsorption liquid sprays into from adsorber sidewall aperture；The stream radially sprayed into
Line style adsorption liquid is persistently cut by the coke-stove gas of tangential high speed rotating, forms countless adsorption liquid droplet；Rich in sulfur after absorbing
The adsorption liquid of compound flows out from absorber bottoms, flows into circulation liquid bath, and after purification, gas flows out from adsorber top；
(2) desorption, regeneration unit: the adsorption liquid rich in sulfide uses solution after circulation fluid slotted disk pipe heats after spray desulfurization
Circulating pump is pumped in the middle part of desorption, regeneration integrated apparatus, and air is entered desorption, regeneration integrated apparatus by bottom simultaneously；De-
Attached, regeneration integrated apparatus in utilize metal ion catalyst to be desorbed out elemental sulfur, metal ion catalyst is reduced, the product sulfur
Leave from desorption reaction device top, send into follow-up equipment, separation and recovery；In desorption, regeneration integrated apparatus, polyphenol substance is with empty
In gas, oxygen combination generates quinone, and metal ion catalyst oxidation is brought back to life by quinone, recovers oxidation sweetening ability, taking off of Method Of Accomplishment
Sulfur regeneration circulates.
Method the most according to claim 1, it is characterised in that the Multi-stage spiral injection adsorber described in step (1) is
2～5 grades.
Method the most according to claim 1, it is characterised in that the single-stage swirl injection adsorber behaviour described in step (1)
It is 1～5kpa as pressure drop.
Method the most according to claim 1, it is characterised in that the swirl injection adsorber sidewall described in step (1) is little
Bore dia is 0.5～5mm.
Method the most according to claim 1, it is characterised in that the effective sulfur of metal ion catalyst described in step (2)
Hold up to more than 0.80g/L, H after desulfurization2S content is up to 5mg/Nm3Below.
Method the most according to claim 1, it is characterised in that the metal ion catalyst described in step (2) is capable of circulation
Use.
The device that a kind of coke-stove gas hydrogen sulfide gas recovery method the most as claimed in claim 1 uses, this device includes:
Single-stage or Multi-stage spiral injection adsorber, the top of this injection adsorber is provided with the coke-stove gas after oil removing pot oil removing
Entrance, the entrance of strong basicity adsorption liquid；The bottom of this injection adsorber is connected with the circulation fluid barrel road collecting adsorption liquid；This spray
The top penetrating adsorber is provided with gas outlet after purification；
And be connected to be desorbed elemental sulfur the desorption reclaimed, regeneration integrated apparatus with circulation fluid barrel road.
8. device as claimed in claim 7, it is characterised in that described coke-stove gas after oil removing pot oil removing is from adsorber top
The entrance in portion is tangential entrance.
9. device as claimed in claim 7, it is characterised in that the entrance of described strong basicity adsorption liquid is little from adsorber sidewall
Hole sprays into.
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| CN107497500A (en) * | 2017-10-20 | 2017-12-22 | 德清四海化工有限公司 | A kind of homogeneous catalyst regenerating unit |
| CN114574647A (en) * | 2020-12-02 | 2022-06-03 | 北京京诚泽宇能源环保工程技术有限公司 | System and method for preparing shaft furnace reducing gas by coupling coke oven gas with carbon dioxide |
| CN114574648A (en) * | 2020-12-02 | 2022-06-03 | 北京京诚泽宇能源环保工程技术有限公司 | System and method for preparing reducing gas of gas-based shaft furnace |
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